Cable-grip



(No Model.) 2 Sheets-Sheet 1.

- G. S. CHAPMAN.

CABLE GRIP. No. 402.305. Q Patented Apr. 30. 1889..

WITNESSES: INVENTOR:

- W Z i Q W MW M A T TORI/E Y8.

.(No Mode L) I 4 v 2 Sheets-Sheet U. S. CHAPMAN. V

' CABLE GRIP.

DWI-402,305. Patented Apr. 30, 1889.;

ATTORNEYS.

WITNESSES:

N. PETERS. PlMv-Lilfwgnphur. wumn wn. n. c.

UNITED STATES PATENT OFFICE.

CHARLES S. CHAPMAN, OFK ANSAS CITY, MISSOURI.

CABLE-GRIP.

SPECIFICATION forming part of Letters Patent No. 402,305, dated April 30, 1889.

Application filed December 20, 1888. Serial No. 2%,1'74. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES SUMNER CHAP- MAN, of Kansas City, in the county of Jackson and State of Missouri, have invented a new and Improved Cable-Grip, of which the tol lowing is a full, clear, and exact description.

This invention relates to cable-grips of the class employed upon the cars of cable railways, the main object of the invention being to so construct the grip that the parts subject to the most wear and tear may be quickly and readily removed in order that they may be replaced by similar unworn parts.

To the end named the inventionconsists of the novel constructions and combinations of elements to be hereinafter described, and specifically pointed out in the claims.

The invention further consists of a doublesocket grip designed for use on roads having duplicate cables, or on sin gle-track roads having passing switches and cables running in both directions in the same tunnel, or on dou of the grip, the draw-bars or shanks and the sectional view of the shoe.

body-sheet being shown in section. Fig. 3 is a cross-sectional view of the grip. Fig. 4 is an end view thereof. Fig. 5 is a longitudinal sectional view of one of the jaws, the view being taken on a line corresponding with the line y 'y in Fig. 3. Fig. 6 is a central longitudinal sectional view of one of the shoes employed in connection with my grip. Fig. 7 is a cross- Fig. 8 is a side View of one of the retaining-bolts employed to hold the shoes to place. Fig. 9 is an edge view of such bolt.-- Fig. 10 is a side view of a grip-head provided with two clamping-sockets. Fig. 11 is an end view of the same griphead. Fig. 12 is a cross-sectional View of a double-socket grip, the view being taken just within the griphead. Fig. 13 is an end View of the center bearing-plate. Fig. 14. is a side view thereof. Fig. 15 is an end View of one of the jaws, and Fig. 16 is a side view of thejaw.

In constructing such a grip as the one forming the subject-matter of this application I provide grip-heads 10, that are supported by draw-bars or shanks 11, the grip-heads being formed with upwardly-extending sockets 12, in which the lower ends of the draw-bars or shanks 11 fit, there to be securelyheld by bolts or rivets 13.

The grip-heads 1O serve as bearings for a central pintle or shaft; 14., upon which the jaws 15 are mounted, said jaws being provided with eyes 16, through which the pintle or shaft passes. The jaws are each provided with sockets 17, adapted to receive shoes or dies 18, said shoes or dies being held to place by bolts 19, having heads the side faces of which correspond in form to the cross-sectional form of the shoes. wedge-shaped, the parts of the wedge forming the outer faces of the head.

The recesses or sockets 17 of the jaws 15 could be provided with transverse ribs 20,having undercut sides, as shown in Fig. 5, these ribs being provided when more than two shoes are to be carried by each jaw. The ends of the shoes or dies 18 are formed to fit against the undercut defining walls of the recess 17, or the side face of the bolt 19, the arrangement being such'that when two shoes are applied to place and the bolt 19 is passed in between them the bolt in being drawn home will force the ends of the shoes against the end walls of the recess or against the side face of the partition 20, whereby the shoe will be firmly held within the recess 17 At the back of the recess 17 there are formed recesses 22, in which the nuts 23 of the bolts 19 ride.

To the jaws15 I connect toggle-levers 25, said levers in turn being connected to castings 26, that are bolted or riveted to the body-sheet 27, the castings 26 being provided with side lugs or ears, 28, that ride upon the vertical side faces of the grip-heads, as clearly shown in the drawings, the arrangement being such that as the body-sheet is moved downward the jaws 15 will be moved upon their supporting shaft or pintle to a position such that they will firmly grip the cable. 7

In order to prevent the entrance of grit and These bolt-heads, however, are

dirt, I provide the grip-heads with hoods 30, which extend over the jaws, as shown.

In Figs. to 16, inclusive, I illustrate a double-socket grip, the grip-heads 10 of this double-socket grip carrying a central supporting shaft or pintle, 14, on which there is supported a central jaw, 52, said jaw having at one end bosses or projections 53, that ride in recesses 54, formed in the inner faces of the grip-heads. At either side of the central jaw I mount a jaw, 15, these jaws being connected by toggles to a body-sheet, 27. The lugs or projections have considerable play in their recesses 54. The central jaw is moved laterally to the right or to the left, the movement depending upon which socket the cable enters.

The doublc-s0cket grip just described is designed for use on roads having duplicate cables, or on single-track roads having passing switches and cables running in both directions in the same tunnel, or on double-track roads having cables at one side of the slot running in one direction and on the opposite side running in the other direction.

From the construction above described it will be seen that should the draw-bars or shanks, the body-sheets, or the shoes or dies become so worn as to be unfit for further use any of the parts named could be removed and replaced by nnworn parts of similar form.

Having thus described my invention, I claim as new and desire to secure by Letters Pat ent 1. In a cable-grip, the combination, with jaws formed with undercut recesses, of shoes or dies fitting within said recesses, and bolts formed with wedgeshaped heads which bear against the shoe ends, substantially as described.

2. In a grip, the combination, with the grip heads, of jaws supported thereby, and hoods carried by the grip-heads and extending over the jaw ends, substantially as described.

3. In a cable-grip, the combination, with grip-heads,of jaws pivoted in the heads, the body-sheet provided with a casting having side lugs or ears, and toggle-levers pivoted to the jaws and to the said casting, substantially as herein shown and described.

4. A cable-grip provided with a central movable jaw, two side jaws, and toggles by which the side jaws are connected, snbstantially as described.

5. In a cable-grip, the combination, with the grip-heads formed with recesses 54, of a central jaw, 52, formed with projections which fit withinthe recesses 54, side jaws, 15, and toggles by which the side jaws are connected, substantially as described.

CHARLES S. CHAPMAN.

Witnesses:

FREDERICK LEHMAN, GEORGE F. MILLER. 

